These unique rigid restraints weigh just under 370 grams, are backloading and double locking (using the pin on one of the two keys provided).  A very good quality handcuff, already recognised as meeting all the standards required by most of our Police Forces in the UK.

I bought these with collectors in mind but also the four holes in the middle of the frame will allow bolts to facilitate fastening to anchor points within a cell or prison van.